For some unknown reason my sound is choosing now not to work... I verified the integrity of the game cache, it found a file missing, i thought that was it, nope, still no sound. I'm using a Windows 7 64 bit Quadcore 2.8ghz Phenom II 820 Processor, ATI 5650 GPU, LX-3000 Microsoft headset, alternatively i have Realtek high definition audio speakers, and i have DX11.

One thing that pops up before the game starts is some little icon that says "Bad version of OpenAL32.DLL", i click ok on that and it just continues with the game, except no sound.

In the sound options i can't change either the EAX or the Hardware acceleration options, they are stuck at enabled and disabled.